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Home / Products / Latches / Quarter Turn

Quarter-Turn Latches & Cams

Quarter-turn latches, also known as compression latches, are a locking system that uses a 90-degree, or quarter-turn, design to secure and release components. They are appreciated  for their simplicity, reliability, convenience, and quick-access functionalities. Quarter-turn latches are used for various industrial, commercial, and domestic applications.

As the name suggests, the locking system works by a simple quarter-turn mechanism. Quarter-turn latches typically consist of a key or a tool-operated locking cylinder and a cam that serves as the locking element. When the operator inserts the key and turns it, the cam rotates to either its locked or unlocked position. 

Despite their simplistic design, quarter-turn latches offer enhanced accessibility and protection when users need entry to an area quickly without compromising security. A quarter-turn cam latch is used to fasten electrical cabinets, access panels, industrial machinery, HVAC systems, computer server racks, and other enclosures. Discover more about quarter-turn cam latches and our selection.

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Types of Quarter Turn Latches

Quarter-turn latches can be key-locking or non-locking depending on the application. They are constructed with a variety of materials, such as stainless steel, chrome plated, black powder coated, zinc plated, polyamide, zinc alloy, and more.

There are two main types of quarter-turn latches:


  • Single-Point Quarter Turn Latch

    A single-point quarter-turn latch is a locking mechanism that uses a quarter-turn to engage and disengage a keeper at a specific point, usually halfway up an enclosure. The latch is made up of a cam, housing, nut, insert, washer, and screw. It can be operated with a key, handle, or knob to turn the locking mechanism.

  • Multi-Point Quarter Turn Latch

    A multi-point quarter-turn fastening system features multiple latching points that are controlled by a single actuating point.The type of latch system can be integrated with various handle latches, including swing handles, T-handles, L-handles, and paddle handles. Multi-point lockable latches provide enhanced security and clamping force. These make them ideal for applications that require high vibration and shock resistance or a tight seal across the gasket.

    Some of the many quarter-turn latch designs available from Sierra Pacific Engineering and Products (SPEP) include:

    • Slotted arrow
    • Hex
    • Recessed hex
    • Thumb turn
    • 7 mm square
    • 8 mm square
    • Key lockable
    • Padlockable
    • L-handle
    • Double bit
    • Triangular

Key Features of Quarter Turn Latches

Every quarter-turn cam latch available at SPEP features an integrated O-ring, providing a water-resistant seal. This key feature serves as additional protection for the enclosure and its contents against moisture and dust. This makes quarter-turn latches and cam locks useful in a range of industries, such as for RVs, HVAC systems, and electronic enclosures.

SPEP has a wide array of quarter-turn latch accessories to suit almost any application. No matter the mechanism your latch uses, we've got you covered. From single-point to multi-point cams and everything in between, our latch accessories can be added to most quarter-turn latches to improve their function.

How to Choose the Right Quarter Turn Latch

Quarter-turn latches are reliable locking solutions. With such a wide variety of designs to choose from, you want to select the right quarter-turn latch for your needs. Consider these questions to help you make your decision:

Does the Application Have Specific Requirements?

There may be regulations and safety standards to comply with when using a quarter-turn latch depending on your industry. This is to ensure the equipment is only accessible by authorized personnel and that the contents remain secure.

In What Environment Will the Quarter Turn Latch Be Used?

The environment in which you plan to use a quarter-turn latch plays a key role in determining the ideal design. This decision significantly impacts your choice of material . Stronger, more heavy-duty materials are recommended for quarter-turn latches that will be used outdoors to withstand impact from the elements and great amounts of force from the wind.

Is There an Aesthetic Preference?

While a quarter-turn latch’s intended use is functional, some consumers place greater emphasis on its appearance rather than its internal components. Knowing your ideal look and finish can help you narrow down your choices during the selection process.

Quarter Turn Latch Installation and Maintenance

Correct installation and care are critical for the long-term, effective use of quarter-turn fasteners. These locking mechanisms can be installed with relative ease and only require basic tools. Follow the manufacturer’s instructions for proper installation.


Routinely checking the integrity and condition of your quarter-turn latch helps minimize vulnerability and ensures the locking mechanism continues working as expected. Remove any debris build-up and wipe off any contaminants when spotted.

UL Recognized Quarter Turn Latches

At SPEP, we aim to provide you with the highest-quality hardware. Our quarter-turn latches are UL Recognized (FTTA2). This independent product safety certification verifies our quarter-turn latches meet strict safety requirements during use for added peace of mind.

What is a quarter-turn latch used for?

These reliable locking mechanisms are used to secure movable elements like doors, windows, hatches, and machine panels to protect the contents inside an enclosure.

How do I install a quarter-turn latch?

Follow the manufacturer's installation guide, which typically includes step-by-step instructions.

What is the difference between a quarter-turn latch and a quarter-turn cam?

Cam locks feature traditional key-turn actuation and quarter-turn latches rely on a tool-action or hand activation to secure or release the locking mechanism. Learn about the differences between quarter-turn latches and cam locks.

What are the common applications of quarter-turn latches?

Quarter-turn latches are versatile and can be used for several applications. Industries rely on them for industrial, electrical, commercial, and domestic uses.

How do I maintain a quarter-turn latch?

Like any piece of hardware, quarter-turn latches must be maintained to ensure proper use. Users should periodically inspect the latch and locking mechanism and remove contaminants when necessary.
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    1 Gateway Ct., Ste. E Bolingbrook, IL 60440

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    Sierra Pacific Engineering & Products designs, manufactures and distributes cost-effective industrial hardware components B2B. Our vision is to sustainably perpetuate the growth and stability of our customers and employee owners through the foundations of engineering, service, and value.

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